added an new exception to handle cases where a wrong template is given to eoParser::valueOf

eo/src/eoExceptions.h

@@ -103,4 +103,30 @@ public:
 private:
     std::string _name;
 };
+
+/*!
+ * An error that signals a bad parameter type
+ *
+ * Thrown by eoParser::valueOf
+ *
+ * @ingroup Parameters 
+ */
+class eoWrongParamTypeException : public std::exception
+{
+public:
+    eoWrongParamTypeException(std::string name) : _name(name){}
+
+    virtual const char* what() const throw()
+    {
+        std::ostringstream ss;
+        ss << "You asked for the parameter " << _name << " but it has not been declared under this type";
+        return ss.str().c_str();
+    }
+
+    ~eoWrongParamTypeException() throw() {}
+
+private:
+    std::string _name;
+};
+
 #endif // __eoExceptions_h__